public void EluTest()
{
var a = new Matrix(2, 2);
a.InRandomize();
var b = a.Duplicate();
const double alpha = 0.01;
a = new Elu(0.01).Forward(a);
b.InMap((x) => x >= 0 ? x : alpha * (Math.Exp(x) - 1));
Assert.IsTrue(Math.Abs(a.FrobeniusNorm() - b.FrobeniusNorm()) < 0.1,
new Elu(0.01).Type().ToString() + "ELU Activation.");
}
public void EluPrimeTest()
{
var a = new Matrix(2, 2);
a.InRandomize();
var b = a.Duplicate();
const double alpha = 0.01;
a = new Elu(0.01).Backward(a);
b.InMap((x) => x >= 0 ? 1 : alpha * Math.Exp(x));
Assert.IsTrue(Math.Abs(a.FrobeniusNorm() - b.FrobeniusNorm()) < 0.1,
new Elu(0.01).Type().ToString() + " Derivative.");
}